Furnace-door frame



Feb. 19 1924. i A1,483,978

P. J. KEENAN FnNAcE noon' FRAME Filedv June 7. 1923 2 Sheets-Sheet 1 Feb. 19 1924. v l. J, KEENAN .Funmcn noon FRAME A Filed June-lv.. 192s 2 sheetsneet 2.

' cordance with my invention the life of tho cooling fluid will only pass through the` lower arched portion which is activeand where the cooling effect is required, while the `upper channel is left inactive or dead. And when both arch portions of the arch ymember are sufficiently worn away then the flanges with the attached strips k17 may be cut from the worn out central or arch portion and these flanges and .Strips can be substituted in place of the cheek plates 25 as soon as the former ycheek plates have become worn out'and must be removed, It is evident that this particular construction effects'Y considerable economy in the maintenance of furnace door frames.` s Whilell havev illustrated and described the preferred form of construction for carrying my invention into effect, this is capable of variation Vand modification without departing from the spirit of the invention. Ltherefore, do not wish to belimited to the precise details of construction set forth, but desire to avail myself of such variations and modifications as. come within the sco Je of the appended, claims.

aving described. my invention, what I- claim as new and desire to secure by Letters Patent is:

1. Reversible arch means for the `door frame of a furnace, said means being provided with similarly shaped upper and lower arch portions and with similar means at its sides arranged for reversibly fastening said arch means in position in saiddoor frame.

2. Reversible arch means for the doorv frame of furnace, said means being provided with similar upper and lower arch portions and with similar mounting means for reversibly fastening said arch means in positionin said door frame'and having means .for admitting cooling fluid through each of said portions.

3.` A reversible arch member for a furnace door frame, provided with similar upper and lower faces, and a separat/e interior channel extending along each face with a cheek p1ates.

ting cooling'fluid through either of said portions, and side flanges with bolt holes correctly positioned for mounting said cast-- ing in said door frame with either of said rportions downward.

6. A furnace door frame comprising arch means and vseparate cheek plates, said arch means and plates having mounting means at the sides, all of equal length and beingrv arranged for fastening said mounting means of the arch means in place of said cheek plates. y y s 7. A. furnacedoor frame comprising arch means and separate cheek plates, said arch means and plates having sidev flanges and attached portions all of equal length, there being mounting means provided in corresponding positions on said flanges'k for mounting the flanges of said arch means4 and the attachedportions in place of said 8. A; furnace `door' frame lcomprising buckstaysr with upper and lower sets of bolts, an arch casting having' attachingL flanges and y adj acent laterally extending strips all of equal length, and cheek plates made from the flanges and ,adjacent strips of similar arch castings, there being bolt holes provided inV corresponding positions in all of said flanges forl mounting said arch ,casting andcheek plates interchangeably in position on said bolts/in the buckstays.

, 9. A furnace door frame comprising a re versible arch member having similarly curved lupper and lower portions, separatecheek plates beneath said arch i'nen'lbensaid members and` plates comprising side flanges and attached lateral strips :all of equal length, and means for interchangeably fastening the flanges of said 'arch member in the upper position of said vframe yor in the lower position inplace of said cheek plates.

In testimony lwhereof I havesigne'd my name to this specification in the4 presence of two subscribing witnesses. y y

PATiuoK JosnPH KEENAN., Witnesses: .y 7

FiniDA C. ArPLE'roN, MARGARET Auen. 

